Abstract We observed decreased effectiveness of influenza vaccine with increasing time since vaccination for prevention of influenza A(H3N2), influenza A(H1N1)pdm09, and influenza B/Yamagata–associated hospitalizations among adults. Maximum vaccine effectiveness (VE) was observed shortly after vaccination, followed by an absolute decline in VE of about 8%–9% per month postvaccination.
All Keywords
【저자키워드】 Hospitalization, Influenza, Adults, vaccine effectiveness, waning,
【저자키워드】 Hospitalization, Influenza, Adults, vaccine effectiveness, waning,